package com.kws.system.service.impl;

import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import javax.annotation.PostConstruct;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.kws.common.core.domain.R;
import com.kws.common.security.utils.SecurityUtils;
import com.kws.system.domain.vo.CreateDictTypeRq;
import com.kws.system.domain.vo.QueryDictTypeRq;
import com.kws.system.domain.vo.UpdateDictTypeRq;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.kws.common.core.constant.UserConstants;
import com.kws.common.core.exception.ServiceException;
import com.kws.common.core.utils.StringUtils;
import com.kws.common.security.utils.DictUtils;
import com.kws.system.api.domain.SysDictData;
import com.kws.system.api.domain.SysDictType;
import com.kws.system.mapper.SysDictDataMapper;
import com.kws.system.mapper.SysDictTypeMapper;
import com.kws.system.service.ISysDictTypeService;

/**
 * 字典 业务层处理
 * 
 * @author zhangyh
 */
@Service
public class SysDictTypeServiceImpl implements ISysDictTypeService
{
    @Autowired
    private SysDictTypeMapper dictTypeMapper;

    @Autowired
    private SysDictDataMapper dictDataMapper;

    /**
     * 项目启动时，初始化字典到缓存
     */
    @PostConstruct
    public void init()
    {
        loadingDictCache();
    }

    /**
     * 根据条件分页查询字典类型
     * 
     * @param dictType 字典类型信息
     * @return 字典类型集合信息
     */
    @Override
    public Page<SysDictType> selectDictTypeList(QueryDictTypeRq rq)
    {
        Page<SysDictType> page = new Page<>(rq.getPageNum(), rq.getPageSize());
        return dictTypeMapper.selectDictTypeList(page,rq);
    }

    /**
     * 根据所有字典类型
     * 
     * @return 字典类型集合信息
     */
    @Override
    public List<SysDictType> selectDictTypeAll()
    {
        return dictTypeMapper.selectDictTypeAll();
    }

    /**
     * 根据字典类型查询字典数据
     * 
     * @param dictType 字典类型
     * @return 字典数据集合信息
     */
    @Override
    public List<SysDictData> selectDictDataByType(String dictType)
    {
        List<SysDictData> dictDatas = dictDataMapper.selectDictDataByType(dictType);
        return dictDatas;
    }

    /**
     * 根据字典类型ID查询信息
     * 
     * @param dictId 字典类型ID
     * @return 字典类型
     */
    @Override
    public SysDictType selectDictTypeById(Long dictId)
    {
        return dictTypeMapper.selectDictTypeById(dictId);
    }

    /**
     * 根据字典类型查询信息
     * 
     * @param dictType 字典类型
     * @return 字典类型
     */
    @Override
    public SysDictType selectDictTypeByType(String dictType)
    {
        return dictTypeMapper.selectDictTypeByType(dictType);
    }

    /**
     * 批量删除字典类型信息
     * 
     * @param dictIds 需要删除的字典ID
     */
    @Override
    public void deleteDictTypeByIds(Long[] dictIds)
    {

            dictTypeMapper.deleteDictTypeByIds(dictIds);

    }

    /**
     * 加载字典缓存数据
     */
    @Override
    public void loadingDictCache()
    {
        SysDictData dictData = new SysDictData();
        dictData.setStatus("0");
        Map<String, List<SysDictData>> dictDataMap = dictDataMapper.selectDictDataList(dictData).stream().collect(Collectors.groupingBy(SysDictData::getDictType));
        for (Map.Entry<String, List<SysDictData>> entry : dictDataMap.entrySet())
        {
            DictUtils.setDictCache(entry.getKey(), entry.getValue().stream().sorted(Comparator.comparing(SysDictData::getDictSort)).collect(Collectors.toList()));
        }
    }

    /**
     * 清空字典缓存数据
     */
    @Override
    public void clearDictCache()
    {
        DictUtils.clearDictCache();
    }

    /**
     * 重置字典缓存数据
     */
    @Override
    public void resetDictCache()
    {
        clearDictCache();
        loadingDictCache();
    }

    /**
     * 新增保存字典类型信息
     * 
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    public int insertDictType(SysDictType dict)
    {
        int row = dictTypeMapper.insertDictType(dict);
        if (row > 0)
        {
            DictUtils.setDictCache(dict.getDictType(), null);
        }
        return row;
    }

    /**
     * 修改保存字典类型信息
     * 
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public R updateDictType(UpdateDictTypeRq rq)
    {
        SysDictType dictType = dictTypeMapper.queryDictTypeById(rq.getDictId());
        if (null == dictType){
            return R.fail("未查询到指定数据字典");
        }
        SysDictType type = dictTypeMapper.queryDictTypeByDictName(rq.getDictName(),null);
        if (null != type && type.getDictId() != dictType.getDictId()){
            return R.fail("字典名称已存在!");
        }
        SysDictType type1 = dictTypeMapper.queryDictTypeByDictName(null,rq.getDictType());
        if (null != type1 && type.getDictId() != dictType.getDictId()){
            return R.fail("字典类型已存在!");
        }
        dictType.setRemark(rq.getRemark());
        dictType.setStatus(rq.getStatus());
        dictType.setDictName(rq.getDictName());
        dictType.setDictType(rq.getDictType());
        dictType.setUpdateBy(SecurityUtils.getStringUserId());
        dictType.setUpdateTime(new Date());
        int i = dictTypeMapper.updateDictType(dictType);
        if (1 == i){
            return R.ok();
        }
        return R.fail("修改失败!");
    }

    /**
     * 校验字典类型称是否唯一
     * 
     * @param dict 字典类型
     * @return 结果
     */
    @Override
    public boolean checkDictTypeUnique(SysDictType dict)
    {
        Long dictId = StringUtils.isNull(dict.getDictId()) ? -1L : dict.getDictId();
        SysDictType dictType = dictTypeMapper.checkDictTypeUnique(dict.getDictType());
        if (StringUtils.isNotNull(dictType) && dictType.getDictId().longValue() != dictId.longValue())
        {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    @Override
    public R createDictType(CreateDictTypeRq rq) {
        SysDictType type = dictTypeMapper.queryDictTypeByDictName(rq.getDictName(),null);
        if (null != type){
            return R.fail("字典名称已存在!");
        }
        SysDictType type1 = dictTypeMapper.queryDictTypeByDictName(null,rq.getDictType());
        if (null != type1){
            return R.fail("字典类型已存在!");
        }
        SysDictType dictType = new SysDictType();
        dictType.setDictName(rq.getDictName());
        dictType.setDictType(rq.getDictType());
        dictType.setStatus("1");
        dictType.setCreateBy(SecurityUtils.getStringUserId());
        dictType.setCreateTime(new Date());
        dictType.setUpdateBy(SecurityUtils.getStringUserId());
        dictType.setUpdateTime(new Date());
        dictType.setRemark(rq.getRemark());
        int i = dictTypeMapper.insertDictType(dictType);
        if (1 == i){
            return R.ok("保存成功");
        }
        return R.ok("保存失败");
    }
}
